/ Dictionary / Index P populous: Meaning and Definition of Find definitions for: pop•u•lous Pronunciation: (pop'yu-lus), [key] — adj. full of residents or inhabitants, as a region; heavily populated. jammed or crowded with people: There's no more populous place than Times Square on New Year's Eve. forming or comprising a large number or quantity: Because of epidemics the tribes are not nearly so populous as they once were. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: populous (Thesaurus) Populist pop-up Related Content Daily Word Quiz: miscreant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language